History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
These things the man who shrinks from action may indeed disparage, but he who, like ourselves, wishes to accomplish something will make them the goal of his endeavour, while every man who does not possess them will be envious.
To be hated and obnoxious for the moment has always been the lot of those who have aspired to rule over others; but he who, aiming at the highest ends, accepts the odium, is well advised. For hatred does not last long, but the splendour of the moment and the after-glory are left in everlasting remembrance.